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O. B. .H-O'TOHKISS.

Radiator.

Patented Feb. 15,1881.

INVENTOR ATTORNEY WITNESSES L J N.PETERS EHOTO LITNDGRAPHER. WASHINGTON,D, C.

NITED STATES PATENT OFFICE.

CHARLES B. HOTGHKISS, OF BROOKLYN, NEW YORK.

RADIATOR.

SPECIFICATION forming part of Letters Patent No. 237,869, dated February15, 1881.

Application filed December 27, 1879.

To all whom tt may concern Be it known that 1, CHARLES B. HOTOH- KISS,of the city of Brooklyn, in the county of Kings and State of New York,have invented certain new and useful Improvements in Radiators, of whichthe following is a specification.

In the accompanying drawings, Figure 1 represents a vertical centralsection of my improved radiator, and Figs. 2 and 3 are horizontalsections of the same, respectively on line w 00 and y y, Fig. 1.

Similar letters of reference indicate corresponding parts.

This invention has reference to an improved radiator for gas orpetroleum heating-stoves, by which the air is heated in a high degreeand discharged at the base of the radiator, the same being also arrangedwith illuminating-windows.

The invention consists of 'a sheet-metal radiator having interior fines,which are open at the top and closed at the bottom, but arranged toconnect with openings near the base of the radiator, so that the airheated by the flame of the burner is first carried up and then drawndown in the flnes to be discharged through the openings, the lower partsof the flnes being provided with inclined mica bottoms for producing theefl'ect of illumination.

Referring to the drawings, A represents a gas or petroleum burner of anyapproved construction, and B a radiator, which is preferably made ofsheet metal and closed tightly at the top by a cover, 0. At the insideof the radiator B are arranged a series of flnes, D, which are open atthe top and closed at the bottom, said flnes extending from a point nearthe base of the radiator, but on a level with or above the burner orother source of heat, to a point near the top of the same. The heatedairfrom the burner passes first to the top of the radiator, and heatsthoroughly the surface not taken up by the lines, and also'the innerwalls of the flues, so as to create a downward draft in the same, owingto the partial vacuum formed in the lower parts of the fines by thegreater heat exerted thereon by the flame. The heated air is therebydrawn from the top of the radiator down into the flues and emittedthrough discharge-openings b of the radiator, as indicated by arrows inFig. 1.

For the purpose of also obtaining the pleasing. effect of illuminationin the radiator, the flnes are arranged 'at the lower ends with inclinedor slanting mica bottoms d, which are supported in guideways of the sidewalls of the flnes, so as to be conveniently removed for cleaning orrepairs. These inclined mica bottoms are placed back of and in line withthe discharge-openings I), so that they form windows through which theflame of the burner is seen. In this manner not only a very simple andeffective heating apparatus is obtained, but also, by the illuminedwindows, a neat and pleasing appearance imparted to the same.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A radiator for gas and petroleum heating-stoves,provided with interior flues, which are open at the top, and withsliding and removable bottoms back of and in line with thedischarge-openings of the radiator, substantially as described.

2. A radiator for gas or petroleum heatingstoves, provided with interiorflues, which are open at the top, and closed by inclined bottoms of micaback of and in line with the discharge-openings of the radiator,substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention 1 have signed myname, in presence of two witnesses, this 24th day of December, 1879.

CHARLES B. HOTOHKISS.

Witnesses PAUL GOEIEL, CARL KARP.

